Unity ContentSizeFitter 手动刷新

    public void RefreshContentSizeFitter()
    {
        ContentSizeFitter[] csfs = itemRoot.GetComponentsInChildren<ContentSizeFitter>();
        foreach (var item in csfs)
        {
            LayoutRebuilder.ForceRebuildLayoutImmediate(item.GetComponent<RectTransform>());
        }
    }